Quick Answer: How To Kill Scale On Plants

Remove existing scale on houseplants by rubbing gently with a facial-quality sponge or cotton swab dipped in rubbing alcohol. The alcohol alone should kill the scale, but the dead insects will remain on your plants and make it difficult for you to scout for new infestations.

How do you get rid of scale on plants naturally?

Control To get rid of scale insects prune and dispose of infested branches, twigs and leaves. When scale numbers are low they may be rubbed or picked off of plants by hand. Dabbing individual pests with an alcohol-soaked cotton swab or neem-based leaf shine will also work when infestations are light.

What insecticide will kill scale?

When the scale feed on the sap, they ingest the toxic insecticide and are killed. Acephate, imidacloprid and dinotefuran are three commonly used systemic insecticides that are effective against scale.

How long does it take to get rid of scale on plants?

Keep the affected plant away from other plants for a minimum of 3 weeks. For small infestations, skip this step and move on to the next one. For larger scale issues, you need to remove the diseased areas. When you spot clusters of scale insects, use your pruning shears to clip off the affected parts of the plant.

Can plants recover from scale?

They feed on the sap of plants, and a large enough population can weaken a plant, damage it or even kill it. Scale can be difficult to detect. Once the insects settle down to feed and pierce the plant’s tissue with their needle-like mouth parts, they never move again and become firmly attached to the leaves or stems.

Does scale live in potting soil?

Do scale insects live in the soil of indoor plants? Yes, they may infest plant even indoors. Scale insects look like brownish scales on the stem and roots . The white molds you mention could be white aphids, white fungus, or powdery mildew.

How often do I spray for scale?

For effective control, you may need to apply pesticides two to four times at 5- to 7- day intervals, because most pesticides work for less than a week, but crawlers from a single generation can hatch over several weeks.

Why do plants get scale?

For most common scales, this is the only stage that crawls about on the plant. When the crawlers arrive at a suitable location, they insert their mouthparts into the plant, and begin to feed on the plant’s sap. The shell or scale characteristic of the species develops soon after feeding begins.

How do you kill scale insects?

Soft shell scale bugs can be susceptible to insecticide, but the safest bet to begin treating scale regardless of whether it’s soft or hard shell variety is to start by removing the pests with your fingernail or a soft toothbrush, or even a Q-tip dipped in rubbing alcohol.

Can I spray rubbing alcohol on my plants?

Houseplants bothered by pests? Rub them out with rubbing alcohol. An alcohol spray is effective against mealy bugs, whiteflies, red spider mites, aphids, fungus gnats, and scale. To make the spray, mix 1/2 to 1 cup of rubbing alcohol with 1 quart of water in a pump-spray bottle.

Can scale spread to other plants?

Scale bugs can be found indoors or outdoors. Finding scale inside generally means that you brought an infested plant indoors. It’s easy to spread them to other houseplants, so check your plants carefully! A plant which is suffering from scale infestation may show signs of premature leaf drop or yellowed leaves.

Do scale insects move?

Usually smaller than a pinhead, in general they move around searching for a favorable spot to settle down to feed and begin producing their distinctive scale coverings but in some species they are moved by wind to settle on other plants.

Do scales on plants move?

What Does Scale Look Like On Plants? Scale insects are very difficult to see on a plant. Even if you do notice them, scale bugs on houseplants look more like a weird growth than a bug. They look like small brown dots or bumps, and they don’t move.

What is the life cycle of a scale insect?

Life Cycle Scale insects have three distinct life stages (egg, immature, adult) and may complete several generations in a single year. Adult females produce eggs beneath the scale covering or in a cottony material, and in many cases spend the cold winter months in this stage.

Should I repot plant with scale?

If you decide to repot a plant after treating it for scale, then be sure to sterilize the pot before reusing. Houseplant scale insects can hide on the edges or the rim on a plant pot, and can easily infest any plant that’s potted in there.

How do you treat scale on indoor plants?

Treat fortnightly with cotton buds dipped in rubbing alcohol and brushed over the scale, neem oil (diluted as per bottle instructions) or insecticidal soap sprayed onto the scale. These are all safe to use indoors. Be thorough and persistent. Check all the crevices, nooks and crannies.

Can you drown scale bugs?

After all, spraying with horticultural oils works by suffocation. I decided to submerge my whole Bay Laurel in water for a while to drown the scale insects. I got a 5 gallon bucket, taped a plastic bag around the pot to keep the soil in, and turned in upside down in the water, submerging the entire foliage and trunk.